How does threshold frequency depend on intensity of light in photoelectric effect?

What is photoelectric effect ?

Define Threshold frequency.

The graph between stopping potential and intensity of light in photoelectric effect is

Derive Einstein's equation of photoelectric effect

What is the effect of intensity of incident light on the photoelectric current?

How does the sign of W depends on DeltaV ?

State the characteristics of photoelectric effect

Define threshold wavelength for photoelectric effect.

Light of frequency 1.5 times the threshold frequency is incident on a photo-sensitive material. If the frequency is halved and the intensity is doubled, the photoelectric current becomes